Danone

Big Food may be baby-stepping toward healthier fare, but Danone (which exited the junk-food biz in 2007) has committed completely. Le roi du lait excels at tailoring products to vulnerable populations, says Inge Kauer, executive director of the Access to Nutrition Index. (Danone topped the index in 2013; a new ranking comes out later this year). After studying the diets of Brazil’s youth, Danone reformulated a bestselling cheese (reducing sugar and adding vitamins) without harming sales. In Bangladesh, children eat 600,000 servings a week of its Shokti-Doi, a nutrient-rich yogurt (made in collaboration with No. 12, Grameen Bank).